Spark-arrester.



N. J. ROETHER.. 3mm ARBESTER. AFFLITG'ATION FILED NOV.17, 1911.

1,037,326, w Patented Sept. 3, 1912.

v INVENTOR 7 J in: eff her NICKOLAS J. nonrmm' or MINERAL ro'm'r,isconsin.

. srARK-Annns'mn.

Specification of Letters Patent. I

, PatentedSept. 3,1912.

Applicationflm November '17, 191-1. Serial No. 660,809."

To all whom it may concern:

Be' known that I, NICKoLAs J. ROETHER, citizen of, the United States,residing at Mineral Point, in .the county of Iowa and State of\Visconsin, have invented, certain new and useful Improvements in SparkArresters; andI do hereby declare. the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains'to make and use the same.

This inventionrelates to spark arresters and more particularly to thatclass of spark arrest'ers adapted for use upon smoke stacks of engines;

' An" object of the'invention is to provide a.

spark arrester attachment for smoke stacks which will eiiectively arrestthe sparks and prevent escape of the same.

Another object is to devise a spark arrester of this character which maybe readily positioned upon. the upper end of a smoke stack and whichwill allow the escape of the smoke, but will prevent the sparks orcinders from escaping and probably causing serious damage.

Another object. is to devise a spark. arrester of novel form and onewhich will be extremely effective .in the performance of its duties;

Other objects and advantages will be herein after set forth and pointedout in-the specification and claim.

In the accompanying drawings whichare maKe a part oi this a plication,Figure 1,- is a vertical sectional view through the spark arrestersecured upon the upper' end of a smoke stack, said view being taken onthe line 1-1, Fig. 2, while, Fig. 2, is a similar view,- at right anglesto Fig. 1, taken on the line 2-2, Fig. 1.

Referring more particularly to the drawings in which similar referencenumerals designate corresponding parts throughout the several views, 1 rrestnts the upper end ofan ordinary smok stack over which the invertedV-shaped bottom 2 of'the spark arrest'ei; housing is secured, a suitableopening being provided through the center of the bottom 2 to accommodatethe smoke stack 1,} said stack projecting slightly throughd: the bottom2. The bottom 2 is, preferably made rigid with the upper end of thesmoke stack 1 and may, if desired, be formed integral therewith.

The side edges of the converging walls closed by screens. Thiswillprevent any shown at of the inverted V shaped bottom 2 are con;

nected to the opposite sides 3 of the spark arrester casing. The loweredges of the slanting portions of the inverted- V-shaped bottom 2,however, are directed downwardly as shown at 4, adjacent the smoke stack1, to meet thehorizontalportions 5, some distance below the upper end ofthe smoke stack. Connecting with the horizontal portlons 5, opposite theportions 4:, are the lower edges of the sides 6, positioned at.-

.right angles to and' connecting with the sides 3, above the smokestack 1. Depending, from thelower horizontal portion 5 are th e'pipes 7,beneath which buckets or other suitable means may be placed to catchsoot and the like collected between the walls 4 and 6,' it beingunderstood that the valve plates 8, resting upon the horizontal portion6 are drawn outwardly to allow the 'soot to pass downwardly through thepipesff.

The upper end of the casing is closed by a cover or top 9 secured uponthe upper edges of the sides 3 and 6, and depending from the edges of acentral opening in the top 9 is a screen 10 which is preferably wedgeshaped and has its opposite ends 10 sparks or .cinders, reaching theupper end of the casing, from escaping through the central openingtherethrough.

Projecting 'nwardly and downwardly from the inner surface of the side 6,near the upper ends thereof, are the deflecting plates 11. p

The sides 6 may be sloped inwardly, as 6, near their upper ends, if deshed, and the edges of the sides 3, below the invented V- haped centralportion 2 of the bottom of the casing, may be converged slightly,"asshown at 3', toward the lower horizontal portions 5, upon opposite sidesof the smoke stack. s Above the smoke stack 1 are the the oppositelydisposed hollow cone members 12 and '13, the bases of said cones beingdisposed in a horizontal plane and-secured together by the'flan es 12'and 13' respectively. The point 0 the inverted cone 13 extends into theupper end of the smoke stack 1 and is supported in position by meanso"f'the supportiiig straps 14, having their opposite ends Bent andsecured to the cone 13 and to the interior of the smoke stack 1,adjacent the u per edge of the latter. Directed putwar y and upwardlyfrom opposite sided of and secured to the upper cone 12 are the baflleplates 15 which are bent to dispose one portion at an angle to the otherand convergingupwardly. The plates 15 are connected attheir lowerportions and upon'opposite sides of the cone l2'by the integral portion16; V

Thus it will be seen that when this an rester is in use, smoke, sparksand cinders pass out of the upper end of the smoke stack 1' and areguided by the lower cone 13 against the baflle plates 15 which willserve to retard the'same and deflect the sparks and Cinders andcausethem to drop'between the plates 11 are directed anyClnd61:S'3.II'8St8dthereby will readily-slide offof said plates and dropdownwardly upon the valve plates 8. The smoke will continue upwardlythrough the casing and travel outthrough the screens 10, which will alsoserve to prevent any small cinders orsparks, which may succeed inpassing the-bafile plates 15 and deflecting plates 11', from escapingthrough d the upper end of the. device.

Itwillthus be'seen, that, by usingthis spark arrester, the sparksand-cinders traveling upwardly through the Smokestack will be preventedfrom escaping to the atmosphere and probably causing a. the or otherserious'damage. It will-also be evident that,

asothe lower portions of the casing,between the portions 4 and sidewalls '6 and 3, are filled with cinders'an-d soot, suitable receptaclesmay be placedbeneat-h the pipe 7 and the valve plates 8 withdrawn toallow the. cinders and soot to drop downwardly through the pipe 7 andinto the receptacle, thus cleaning the casing. It'w'ill also be evidentthat this spark arrester may he employed iilipon any smoke stack andwill be highly e cient and efiective in the performance of its duties;

Owing to the extremely smallnumber of parts and the comparatively simpleformation thereof, it will be evident that the spark arrester-may bemanufactured at areasonable cost and will be, subs'tantial'in use.

- What I claim is:'-

A spark arrester comprising the combina-- tionwith asmoke stack,oppositely disposed cone membershavin'g their bases secured together anddisposed in a horizontal plane,

and baflle plates secured to the .upper of said cones and disposedupwardly and outwardly therefrom; of a'casi-ng secured over the-upperend of the smoke stack, said casing having a screened openingin theupper portion thereof and deflecting plates nearits upper end, saidcasing depending" below the upper end of the smoke; stack and uponopposite sides of the latter, an inverted V-shaped bottom disposedbetween said de-.

pending portions' and provided with a circularopening 'for' receivingsaid, smoke stack, pipes projecting from said dependingportions, valveplates within said depending g portions to cover the open'upper ends of'p p v In testimony whereof I have signed tiny name to thisspecification thepresenc e of two subscribing witnesses.

NIQKOLAS .inoET En.

Witnesses:

UJosnPn J; FmDLER,

ERNEST G. FIEDLER.

